Show remaining and elapsed time during adaptive localization

[dafeda]

Is your feature request related to a problem? Please describe.
GUI does not show remaining and elapsed time when running adaptive localization.
This is useful because in certain cases, adaptive localization might take a prohibitively long time to finish.

[dafeda]

Since we now use as big a batch as memory will allow, TimedIterators next does not get called unless the field is bigger than available memory.

[dafeda]

Need to update iterative_ensemble_smoother to accept a progress callback:

equinor/iterative_ensemble_smoother#212

Then, ert needs to updated:

#7114